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Optimization method based on simplex for surface area improved photocatalytic performance of ▫$g-C_3N_4$▫Roškarič, Matevž ...The main objective of the present study was to increase the specific surface area (SBET) of graphitic carbon nitride (g-C3N4) prepared from dicyandiamide by effectively modifying the synthesis ... procedure using the Simplex optimization method. A remarkable increase in SBET was achieved in only a few steps, with the highest value of 86 m2/g. Compared to the reference material, the improved photocatalyst exhibited enhanced and unique structural, textural, optical, and electronic properties, reflected in the improved ability of the photocatalyst to degrade a variety of organic pollutants dissolved in water. By performing scavenger and spin-trapping experiments, it was confirmed that the major reactive oxygen species formed under visible-light illumination of the enhanced photocatalyst were singlet oxygen (1O2) and superoxide anion radicals (O2–•) with a purposed formation mechanism. The enhanced formation of 1O2 enabled high activity and stability of the optimized materials as well as selective response to degradation of the pharmaceutical compounds studied. By using the simple and fast Simplex optimization algorithm to determine new synthesis parameters, we obtained an improved g-C3N4 that completely degrades bisphenol A under the conditions studied.Source: ACS catalysis [Elektronski vir]. - ISSN 2155-5435 (Vol. 13, iss. 20, Sep. 29, 2023, str. 13282–13300)Type of material - e-article ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 167925507
Author | Roškarič, Matevž ... |
Title | Optimization method based on simplex for surface area improved photocatalytic performance of ▫$g-C_3N_4$▫ |
Publication date | 2023-09-29 |
COBISS.SI-ID | 167925507 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
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Integralni pristop k preprečevanju onesnaževanja voda | P2-0150-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
Files that belong to the publication
Link |
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https://pubs.acs.org/doi/10.1021/acscatal.3c03394# |
https://dirros.openscience.si/IzpisGradiva.php?id=17204 |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Roškarič, Matevž | 54674 |
Zavašnik, Janez, 1981- | 33329 |
Dániel Zámbó, Dániel | |
Kotnik, Tomaž, kemik | 55217 |
Kovačič, Sebastijan | 28412 |
Žerjav, Gregor, 1981- | 32927 |
Pintar, Albin | 11874 |
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